Category Archives: Beam Bending

Tension Stiffening

Posted on 12/03/2010 by dougaj4

Tension Stiffening in reinforced concrete is the increase in stiffness of a cracked member due to the development of tensile stresses in the concrete between the cracks.  The main application of tension stiffening theory in design applications is in the … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , | 3 Comments

Elegant Solutions – Why does this balance?

Posted on 09/12/2009 by dougaj4

From the Eng-Tips forum Why does the mechanism shown below balance when the load applied to each platform is the same, even when the lever arms from the pivot are different? It “looks wrong” but an analysis shows that the … Continue reading →

Posted in Beam Bending, Newton | 1 Comment

Reinforced Concrete Moment-Curvature – 1

Posted on 22/11/2009 by dougaj4

The flexural curvature of any beam composed of material with linear elastic behaviour, subject to a bending moment, M, is given by: C = M / EI where E is the elastic modulus of the beam, and I is its … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , | 5 Comments

Reinforced Concrete Section Analysis – with prestress

Posted on 25/10/2009 by dougaj4

The simplified reinforced concrete section analysis spreadsheet presented here has been revised to allow the input of a pre-tension stress to either or both layers of reinforcement.  The spreadsheet (including full open source code) can be downloaded from RC Design Functions5. Note … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , , , | 3 Comments

LatPile – Analysis of Lateral Loads on Piles

Posted on 26/09/2009 by dougaj4

This post presents an Excel User Defined Function (UDF) to carry out the analysis of vertical piles subject to horizontal loads, using the same approach as employed in the DOS program COM624. A spreadsheet including the UDF and an on-spreadsheet … Continue reading →

Posted in Beam Bending, Excel, Geotechnical Engineering, Newton, UDFs, VBA | Tagged , , , , , | 11 Comments